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Manuel Rausch1, Sebastian Hellmann2, Michael Zehetleitner2

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This summary is machine-generated.

This study shows that the weighted evidence and visibility model better explains subjective visual experience than other models. Visibility depends on sensory evidence related to both the judgment and stimulus features.

Keywords:
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Area of Science:

  • Cognitive Psychology
  • Computational Neuroscience
  • Psychophysics

Background:

  • Understanding subjective visual experience is crucial for explaining human perception.
  • Existing models of confidence in perceptual decisions need to be tested for generalizability to subjective visibility.

Purpose of the Study:

  • To determine if the weighted evidence and visibility model can explain subjective visual experience.
  • To compare the performance of this model against several established perceptual decision models.

Main Methods:

  • A post-masked orientation identification task was employed.
  • Observers provided single identification responses and subsequent subjective visibility ratings.
  • Cognitive modeling techniques were used to fit various models to the collected data.

Main Results:

  • The weighted evidence and visibility model significantly outperformed alternative models, including signal detection and Bayesian models.
  • Subjective visibility was found to depend more on sensory evidence of irrelevant stimulus features than on evidence directly supporting the identification judgment.

Conclusions:

  • The weighted evidence and visibility model provides a robust framework for understanding subjective visual experience.
  • Subjective visibility appears to be driven by at least two distinct types of sensory evidence: one linked to the identification task and another reflecting general stimulus strength.